DE350657C - Device for changing films in daylight - Google Patents
Device for changing films in daylightInfo
- Publication number
- DE350657C DE350657C DENDAT350657D DE350657DD DE350657C DE 350657 C DE350657 C DE 350657C DE NDAT350657 D DENDAT350657 D DE NDAT350657D DE 350657D D DE350657D D DE 350657DD DE 350657 C DE350657 C DE 350657C
- Authority
- DE
- Germany
- Prior art keywords
- daylight
- changing films
- film
- rolled
- film tape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/28—Locating light-sensitive material within camera
- G03B17/30—Locating spools or other rotatable holders of coiled film
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Clamps And Clips (AREA)
Description
Gegenstand der Erfindung ist eine Vorrichtung zum Wechseln von Filmen bei Tageslicht. Bei einer solchen Vorrichtung ist in den Abschlußscheiben eines mit Längsschlitz versehenen Zylinders aus lichtundurchlässiger Masse die Achse zur Aufrollung des Filmbandes lose drehbar. Es hat sich nun gezeigt, daß die Sicherung des aufgerollten Filmbandes gegen Belichtung und. Entrollung bei ι« Entnahme aus der Kamera auch dadurch erreicht werden kann, daß die Abschlußscheiben a durch einen Stab verbunden sind, an welchem eine Feder angebracht ist, von welcher mindestens das eine freie Ende den aufzurollenden Film umspannt und festklemmt.The invention relates to a device for changing films in daylight. In such a device, the shaft for rolling up the film tape is loosely rotatable in the end disks of a cylinder made of opaque material and provided with a longitudinal slot. It has now been shown that the protection of the rolled film tape against exposure and. Unrolling upon removal from the camera can also be achieved in that the closing disks a are connected by a rod to which a spring is attached, of which at least one free end spans and clamps the film to be rolled up.
Hierdurch wird der Vorteil erreicht, daß* der mit einem Schlitz versehene Zylinder fortfallen kann, welcher das Einspannen des aufzurollenden Filmbandes in die Aufrollachse erschwerte.This has the advantage that the cylinder provided with a slot is omitted can, which made it difficult to clamp the film tape to be rolled up in the roll-up axis.
Ein Ausführungsbeispiel der Erfindung ist auf der- Zeichnung dargestellt.An embodiment of the invention is shown on the drawing.
Zwischen den beiden Abschlußscheiben a, in denen die Achse b zur Aufrollung des Filmbandes mittels Handgriffs-e lose drehbar ist, ist eine Stange c angebracht, welche eine starre Verbindung der Abschlußscheiben darstellt. An dieser Stange ist, zweckmäßig in der Mitte, eine Feder d aus Bandstahl befestigt, welche das aufzurollende Filmband umspannt und festklemmt. Die beiden freien Enden der Feder bewirken nun die Umspannung und Festklemmung des Filmbandes; es kann jedoch hierzu die Feder auch derart angebracht sein, daß nur ein freies Ende das aufzuwickelnde Filmband umspannt.Between the two cover disks a, in which the axis b is loosely rotatable for rolling up the film tape by means of a handle-e, a rod c is attached, which represents a rigid connection of the cover disks. A spring d made of steel strip is attached to this rod, expediently in the middle, which spans and clamps the film strip to be rolled up. The two free ends of the spring now cause the tensioning and clamping of the film tape; For this purpose, however, the spring can also be attached in such a way that only one free end spans the film tape to be wound up.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE350657T |
Publications (1)
Publication Number | Publication Date |
---|---|
DE350657C true DE350657C (en) | 1922-03-23 |
Family
ID=6263493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT350657D Expired DE350657C (en) | Device for changing films in daylight |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE350657C (en) |
-
0
- DE DENDAT350657D patent/DE350657C/en not_active Expired
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